Self-enhanced multicolor electrochemiluminescence by competitive electron-transfer processes
Silvia Voci, Romain Duwald, Stéphane Grass, David J. Hayne, Laurent Bouffier, Paul S. Francis, Jérôme Lacour, Nešo Šojić
Abstract
luminophore and coreactant) and each function may be operated either separately or simultaneously. This unique level of control is enabled by integrating but decoupling both molecular functions in a single molecule. Through this dual molecular reactivity, concomitant multicolor ECL emission from red to blue with tunable intensity is readily obtained in aqueous media. This is done through competitive electron-transfer processes between the helicene and a ruthenium or iridium dye. The reported approach provides a general methodology to extend to other coreactant/luminophore systems, opening enticing perspectives for spectrally distinct detection of several analytes, and original analytical and imaging strategies.